Time:

Prep time: 20 Min,
Cook time: 35 Min,
Total time: 55 Min

Yield:

Serves: 4

Method:

Preheat oven to 400°F (200°C).
Place the onion and oil in a frying pan over medium heat.
Cook, stirring, for 10 minutes or until the onion is soft and turning golden.
Add the balsamic and sugar and cook for 2 minutes, then set aside to cool.
Cut the pastry in half (2 rectangles) and score around the outside edge.
Then place on a tray lined with parchment paper.
Top the pastry with the parmesan, leaving a 2cm border.
Top with the onion, olives and oregano.
Bake for 20--25 minutes or until the tart is golden and puffed.